actionable ai

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Make Fable 5 train its replacement before it retires

The exact prompt and the five questions that turn your last free day of Fable 5 into a permanent upgrade for every cheaper session after it.

  • The retiring-engineer prompt that turns Fable 5 into a full project handover
  • The five exit-interview questions that decide the quality of your whole library
  • The 3-phase system: discovery, authoring, self-review, 10 to 16 skill files
  • Why it costs about 40% of one week's Fable usage, and why that is the best trade before July 12

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The exact prompt and five questions to make Fable 5 hand your project off to cheaper models before it goes pay-per-use.

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A look inside

What's inside

01

Why This Is Worth Your Last Free Day

Fable 5 is the smartest model Anthropic has shipped, and right now it is included in your plan.

02

Where This Came From

This play surfaced on r/ClaudeAI (idea from u/oj93-rd, prompt written by u/Rodbourn) and spread from there.

03

Pick One Project and Budget the Run

Two decisions before you touch the prompt.

The rest of the guide

  1. The One Sentence That Changes EverythingYou do not ask Fable to write some skills.
  2. Run the Full Prompt (3 Phases)The full generalized prompt is open source on GitHub.
  3. The Exit Interview: Answer These Like It MattersThis is the part nobody talks about, and it is where the quality of your entire library gets decided.
  4. What Fable Actually Builds YouPhase 2 writes 10 to 16 skill files, all grounded in your repo, not generic advice.
  5. The One Most People MissThe last skill is the payoff: a decision-gated battle plan for your single hardest live problem.
  6. Review, Prune, and Hand It to the Cheap ModelsThe run ends with Fable giving you the skill inventory, what it verified, and what is still uncertain.
  7. When To Skip ItIf you do not have one real, long-living project that cheaper models will keep working on, this is not for you.

About the author

Cooper Simson

Founder of Actionable AI. 30,000+ operators read the newsletter.

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No. The guide explains the work in practical steps and calls out technical details only when they matter.

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